单项选择题

What is the best title for the passage

A．The Inherent Weaknesses of the Price System.
B．Credit Terms in Transactions.
C．Resource Allocation and the Public Sector.
D．The Complexities of the Price System.

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单项选择题

the paragraph following this passage most likely discusses ______.

A．types of payment plans for service
B．unusual ways to advertise products
C．how certain elements of a price "package" influence its market value
D．theories about how products affect different levels of society

单项选择题

According to the passage, the price system is related primarily to ______.

A．products and services
B．transportation and insurance
C．labour and education
D．utilities and repairs